Measuring and testing – With fluid pressure – Leakage
Patent
1997-07-25
2000-03-21
Noori, Max H.
Measuring and testing
With fluid pressure
Leakage
73 413, G01M 334
Patent
active
06038915&
ABSTRACT:
Apparatus and methods whereby flexible walled containers may be automatically pressure tested at a pressure testing station for the purpose of determining the presence of defective containers. Detected defective containers may thereafter be transported to an ejector station and ejected physically from their respective supporting tray. The pressure testing station is provided with an array of pressure testing heads which are moveable reciprocally towards and away from the containers while supported in their tray. Each of the pressure testing heads thus makes sealing contact with the rim of an individual respective one of the containers supported in the tray. The ejector station is provided with an array of ejector assemblies equal in number to the number of containers supported on a tray and oriented at an angle relative to a vertical cross-machine plane. If a container is determined to be defective (i.e., will not achieve and/or maintain a predetermined pressure condition when a pressurizing fluid, such as pressurized air, is introduced into the container at the pressure testing station), a controller will issue a signal corresponding to that one of the ejector assemblies which is in registry with the detected defective container. Selective activation of that one ejector assembly will therefore cause an ejector foot to come into contact with the side wall of the defective container thereby forcing the container downwardly through the tray.
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Loebach John A.
O'Herron Michael R.
Whitehead Greg A.
Noori Max H.
QuesTech Packaging, Inc. Liquidating Trust
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